[PATCH] Fix refcounting for attribute_container

[Hannes Reinecke]

attribute_container_add_device() took an explicit reference on the
parent device, making it impossible to remove the parent by doing
a simple put. So we'd rather _not_ take a reference here as
attribute_container will be handled explicitly by calls to
attribute_container_remove_device()/_destroy_device() anyway.

Signed-off-by: Hannes Reinecke <hare@xxxxxxx>
---
 drivers/base/attribute_container.c |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/base/attribute_container.c b/drivers/base/attribute_container.c
index f57652d..6c7e633 100644
--- a/drivers/base/attribute_container.c
+++ b/drivers/base/attribute_container.c
@@ -114,10 +114,8 @@ static void attribute_container_release(struct device *classdev)
 {
 	struct internal_container *ic 
 		= container_of(classdev, struct internal_container, classdev);
-	struct device *dev = classdev->parent;
 
 	kfree(ic);
-	put_device(dev);
 }
 
 /**
@@ -164,7 +162,11 @@ attribute_container_add_device(struct device *dev,
 
 		ic->cont = cont;
 		device_initialize(&ic->classdev);
-		ic->classdev.parent = get_device(dev);
+		/*
+		 * Don't increase refcount here, device will be
+		 * removed explicitly by a call to _destroy().
+		 */
+		ic->classdev.parent = dev;
 		ic->classdev.class = cont->class;
 		cont->class->dev_release = attribute_container_release;
 		strcpy(ic->classdev.bus_id, dev->bus_id);
-- 
1.5.3.2


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